|
(11) | EP 0 326 359 A3 |
(12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||||||
(54) | Precoat filter element |
(57) A precoat filter element for a precoat filter unit comprises a flow distributor (60)
and flow straightener (50). The flow distributor (60) surĀrounds a septum (10) and
has openings through which liquid may flow. The proportion between the area of openings
and the area of a wall of the flow distribuĀtor (60) may vary along the length of
the septum (10) to distribute flow over the length of the septum (10) in a predetermined
manner. A flow straightener is provided at the base of the septum (10) to reduce turbulence
during precoat and filtration operations, and to reduce the occurrence of large flocs
in precoat slurries during coating operations. |